There’s not a lot yet known about the HTC Ruby. Is the upcoming device simply a repurposed HTC Arrive running Windows Phone 7? Is it an entirely new phone? While we might not have all the answers yet, images posted to Flickr have at least revealed some initial information.

For starters, the Ruby definitely appears to be running Android — as you can see from the recognizable camera icons near the top of its display. You can also make out the T-Mobile logo sitting at the opposite side from the HTC branding, which makes the carrier a very good bet as a possible destination.

The back of the Ruby, which can be seen reflected in the glossy display of an HTC Flyer tablet it was photographing, shows off a few additional hardware tidbits. There’s a headphone jack and a dual-LED rear-facing camera, though without knowing anything specific about its optics or sensor that revelation is about as exciting as the jack.

So, what else do we know about the Ruby? Well, we know for sure that the phone is going to make Microsoft some money. Whether it runs Android or Windows Phone 7, HTC’s patent licensing accord with the folks in Redmond assures that they’ll get a share of the profits one way or another.

Either way, now that these images have leaked let’s hope some hardware specifics follow. What’s your take, Geek faithful? An Arrive with boosted specs and Mango under the hood — or is this another member of HTC’s ever-growing Android army?